VC-1 and WMV3 decoder. More...

#include "vc1dsp.h"
#include "libavutil/avassert.h"
#include "libavutil/common.h"

Macros
#define	VC1_MSPEL_FILTER_16B(DIR, TYPE)
	Filter in case of 2 filters.

#define	VC1_MSPEL_MC(OP, OP4, OPNAME)
	Function used to do motion compensation with bicubic interpolation.

#define	op_put(a, b) a = av_clip_uint8(b)

#define	op_avg(a, b) a = (a + av_clip_uint8(b) + 1) >> 1

#define	op4_avg(a, b) a = rnd_avg32(a, b)

#define	op4_put(a, b) a = b

#define	PUT_VC1_MSPEL(a, b)

#define	avg2(a, b) ((a+b+1)>>1)

Functions
static void	vc1_v_overlap_c (uint8_t *src, int stride)
	Apply overlap transform to horizontal edge.

static void	vc1_h_overlap_c (uint8_t *src, int stride)
	Apply overlap transform to vertical edge.

static void	vc1_v_s_overlap_c (DCTELEM top, DCTELEM bottom)

static void	vc1_h_s_overlap_c (DCTELEM left, DCTELEM right)

static av_always_inline int	vc1_filter_line (uint8_t *src, int stride, int pq)
	VC-1 in-loop deblocking filter for one line.

static void	vc1_loop_filter (uint8_t *src, int step, int stride, int len, int pq)
	VC-1 in-loop deblocking filter.

static void	vc1_v_loop_filter4_c (uint8_t *src, int stride, int pq)

static void	vc1_h_loop_filter4_c (uint8_t *src, int stride, int pq)

static void	vc1_v_loop_filter8_c (uint8_t *src, int stride, int pq)

static void	vc1_h_loop_filter8_c (uint8_t *src, int stride, int pq)

static void	vc1_v_loop_filter16_c (uint8_t *src, int stride, int pq)

static void	vc1_h_loop_filter16_c (uint8_t *src, int stride, int pq)

static void	vc1_inv_trans_8x8_dc_c (uint8_t dest, int linesize, DCTELEM block)
	Do inverse transform on 8x8 block.

static void	vc1_inv_trans_8x8_c (DCTELEM block[64])

static void	vc1_inv_trans_8x4_dc_c (uint8_t dest, int linesize, DCTELEM block)
	Do inverse transform on 8x4 part of block.

static void	vc1_inv_trans_8x4_c (uint8_t dest, int linesize, DCTELEM block)

static void	vc1_inv_trans_4x8_dc_c (uint8_t dest, int linesize, DCTELEM block)
	Do inverse transform on 4x8 parts of block.

static void	vc1_inv_trans_4x8_c (uint8_t dest, int linesize, DCTELEM block)

static void	vc1_inv_trans_4x4_dc_c (uint8_t dest, int linesize, DCTELEM block)
	Do inverse transform on 4x4 part of block.

static void	vc1_inv_trans_4x4_c (uint8_t dest, int linesize, DCTELEM block)

static av_always_inline int	vc1_mspel_filter (const uint8_t *src, int stride, int mode, int r)
	Filter used to interpolate fractional pel values.

static void	put_no_rnd_vc1_chroma_mc8_c (uint8_t dst, uint8_t src, int stride, int h, int x, int y)

static void	put_no_rnd_vc1_chroma_mc4_c (uint8_t dst, uint8_t src, int stride, int h, int x, int y)

static void	avg_no_rnd_vc1_chroma_mc8_c (uint8_t dst, uint8_t src, int stride, int h, int x, int y)

av_cold void	ff_vc1dsp_init (VC1DSPContext *dsp)

Detailed Description

VC-1 and WMV3 decoder.

Definition in file vc1dsp.c.

Macro Definition Documentation

#define VC1_MSPEL_FILTER_16B	(	DIR,
		TYPE
	)

Value:

static av_always_inline int vc1_mspel_ ## DIR ## _filter_16bits(const TYPE *src, int stride, int mode) \
{                                                                       \
    switch(mode){                                                       \
    case 0: /* no shift - should not occur */                           \
        return 0;                                                       \
    case 1: /* 1/4 shift */                                             \
        return -4*src[-stride] + 53*src[0] + 18*src[stride] - 3*src[stride*2]; \
    case 2: /* 1/2 shift */                                             \
        return -src[-stride] + 9*src[0] + 9*src[stride] - src[stride*2]; \
    case 3: /* 3/4 shift */                                             \
        return -3*src[-stride] + 18*src[0] + 53*src[stride] - 4*src[stride*2]; \
    }                                                                   \
    return 0; /* should not occur */                                    \
}

Filter in case of 2 filters.

Definition at line 526 of file vc1dsp.c.

#define VC1_MSPEL_MC	(	OP,
		OP4,
		OPNAME
	)

Function used to do motion compensation with bicubic interpolation.

Definition at line 565 of file vc1dsp.c.

#define op_put	(	a,
		b
	)	a = av_clip_uint8(b)

Definition at line 630 of file vc1dsp.c.

#define op_avg	(	a,
		b
	)	a = (a + av_clip_uint8(b) + 1) >> 1

Definition at line 631 of file vc1dsp.c.

#define op4_avg	(	a,
		b
	)	a = rnd_avg32(a, b)

Definition at line 632 of file vc1dsp.c.

#define op4_put	(	a,
		b
	)	a = b

Definition at line 633 of file vc1dsp.c.

#define PUT_VC1_MSPEL	(	a,
		b
	)

Value:

static void put_vc1_mspel_mc ## a ## b ##_c(uint8_t *dst, const uint8_t *src, int stride, int rnd) { \
     put_vc1_mspel_mc(dst, src, stride, a, b, rnd);                         \
}\
static void avg_vc1_mspel_mc ## a ## b ##_c(uint8_t *dst, const uint8_t *src, int stride, int rnd) { \
     avg_vc1_mspel_mc(dst, src, stride, a, b, rnd);                         \
}

Definition at line 640 of file vc1dsp.c.

#define avg2	(	a,
		b
	)	((a+b+1)>>1)

Definition at line 711 of file vc1dsp.c.

Referenced by avg_no_rnd_vc1_chroma_mc8_c().

Function Documentation

static void vc1_v_overlap_c	(	uint8_t *	src,
		int	stride
	)

static

Apply overlap transform to horizontal edge.

Definition at line 35 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_h_overlap_c	(	uint8_t *	src,
		int	stride
	)

static

Apply overlap transform to vertical edge.

Definition at line 60 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_v_s_overlap_c	(	DCTELEM *	top,
		DCTELEM *	bottom
	)

static

Definition at line 83 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_h_s_overlap_c	(	DCTELEM *	left,
		DCTELEM *	right
	)

static

Definition at line 109 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static av_always_inline int vc1_filter_line	(	uint8_t *	src,
		int	stride,
		int	pq
	)

static

VC-1 in-loop deblocking filter for one line.

Parameters

src	source block type
stride	block stride
pq	block quantizer

Returns: whether other 3 pairs should be filtered or not

See Also: 8.6

Definition at line 143 of file vc1dsp.c.

Referenced by vc1_loop_filter().

static void vc1_loop_filter	(	uint8_t *	src,
		int	step,
		int	stride,
		int	len,
		int	pq
	)

inlinestatic

VC-1 in-loop deblocking filter.

Parameters

src	source block type
step	distance between horizontally adjacent elements
stride	distance between vertically adjacent elements
len	edge length to filter (4 or 8 pixels)
pq	block quantizer

See Also: 8.6

Definition at line 185 of file vc1dsp.c.

Referenced by vc1_h_loop_filter16_c(), vc1_h_loop_filter4_c(), vc1_h_loop_filter8_c(), vc1_v_loop_filter16_c(), vc1_v_loop_filter4_c(), and vc1_v_loop_filter8_c().

static void vc1_v_loop_filter4_c	(	uint8_t *	src,
		int	stride,
		int	pq
	)

static

Definition at line 201 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_h_loop_filter4_c	(	uint8_t *	src,
		int	stride,
		int	pq
	)

static

Definition at line 206 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_v_loop_filter8_c	(	uint8_t *	src,
		int	stride,
		int	pq
	)

static

Definition at line 211 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_h_loop_filter8_c	(	uint8_t *	src,
		int	stride,
		int	pq
	)

static

Definition at line 216 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_v_loop_filter16_c	(	uint8_t *	src,
		int	stride,
		int	pq
	)

static

Definition at line 221 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_h_loop_filter16_c	(	uint8_t *	src,
		int	stride,
		int	pq
	)

static

Definition at line 226 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_inv_trans_8x8_dc_c	(	uint8_t *	dest,
		int	linesize,
		DCTELEM *	block
	)

static

Do inverse transform on 8x8 block.

Definition at line 233 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_inv_trans_8x8_c ( DCTELEM block[64] )

static

Definition at line 252 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_inv_trans_8x4_dc_c	(	uint8_t *	dest,
		int	linesize,
		DCTELEM *	block
	)

static

Do inverse transform on 8x4 part of block.

Definition at line 323 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_inv_trans_8x4_c	(	uint8_t *	dest,
		int	linesize,
		DCTELEM *	block
	)

static

Definition at line 342 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_inv_trans_4x8_dc_c	(	uint8_t *	dest,
		int	linesize,
		DCTELEM *	block
	)

static

Do inverse transform on 4x8 parts of block.

Definition at line 398 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_inv_trans_4x8_c	(	uint8_t *	dest,
		int	linesize,
		DCTELEM *	block
	)

static

Definition at line 413 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_inv_trans_4x4_dc_c	(	uint8_t *	dest,
		int	linesize,
		DCTELEM *	block
	)

static

Do inverse transform on 4x4 part of block.

Definition at line 469 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void vc1_inv_trans_4x4_c	(	uint8_t *	dest,
		int	linesize,
		DCTELEM *	block
	)

static

Definition at line 484 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static av_always_inline int vc1_mspel_filter	(	const uint8_t *	src,
		int	stride,
		int	mode,
		int	r
	)

static

Filter used to interpolate fractional pel values.

Definition at line 548 of file vc1dsp.c.

static void put_no_rnd_vc1_chroma_mc8_c	(	uint8_t *	dst,
		uint8_t *	src,
		int	stride,
		int	h,
		int	x,
		int	y
	)

static

Definition at line 667 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void put_no_rnd_vc1_chroma_mc4_c	(	uint8_t *	dst,
		uint8_t *	src,
		int	stride,
		int	h,
		int	x,
		int	y
	)

static

Definition at line 691 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

static void avg_no_rnd_vc1_chroma_mc8_c	(	uint8_t *	dst,
		uint8_t *	src,
		int	stride,
		int	h,
		int	x,
		int	y
	)

static

Definition at line 712 of file vc1dsp.c.

Referenced by ff_vc1dsp_init().

av_cold void ff_vc1dsp_init ( VC1DSPContext * dsp )

Definition at line 796 of file vc1dsp.c.

Referenced by vc1_decode_init(), and wmv9_init().

Macros

Functions

Detailed Description

Macro Definition Documentation

Function Documentation